The purchase order number set by the buyer per item

ordchg_Examples
 <documentReference documentType="BuyerOrder" id="Sample_PO0000105" date="2020-08-25" lineNo="1"> 
ordchg_XPATH

/b24Message/orderChange/item/documentReference[@documentType="BuyerOrder"]/@id

ordchg_Edifact_Path
ORDCHG.LIN.RFF.C506.1154
ordchg_Edifact_Qualifiers
ORDCHG.LIN.RFF.1153 = ON
ordchg_edifact_sample
RFF+ON:555666:1' DTM+171:20200825'
ordchg_Required
Yes
ordchg_Type
Text
ordchg_Sort
12000